Stopping mechanism for drawing-frames



(No Model.) 2 SheetsSheet 1.

. H. B. ESTES.

STOPPING MECHANISM FOR DRAWING FRAMES.

No. 289,902. Patented Dec. 11, 1883.

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' 2 Sheets-Sheet 2.

(No Model.)

H. B. ESTES. STOPPING MECHANISM FOR DRAWING FRAMES.

Patented 1360.11, 1883.

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-UNirEn STAT S A'rENr Erica.

HENRY B. EsrEs, or MANCHESTER, NEW HAMPSHIRE.

STOPPING MECHANISM FOR DRAWING-FRAMES.

SPECIFICATION forming part of Letters'Fatent No. 289,902, dated December 11, 1883.

application filed December 20, 1882. (No model.)

To all whom it may concern.-

Be it known that I, HENRY B. EsTEs, a citizen of the United States; residing in Manchester, in the county of Hillsborough and State of New Hampshire, have invented certain new .and useful Improvements in Stopping Mechanism for Drawing-Frames, of which the following is a specification.

My invention relates to stopping mechanism for drawing frames; and it consists in mechanism adapted to be operated by a breakage of the sliver or by bunches on the sliver, said mechanism being placed between the drawing-rolls and the calender-rolls and used in connection with the ordinary back stop-motion.

In the accompanying drawings, on two sheets, Figure 1 is a transverse section of the upper part of the frame, drawing-rolls, calshowing my improved front stop-motion and its connection with the ordinary back stop motion; Fig. 2, a detached plan of the front trumpet, slotted slide, and part of the rockshaft; Figs. 3 and 4, transverse sections of part of the frame, rock-shaft, slotted slide, vertical rod, and weighted levers, the motion of the slide being shown as arrested in each figure, in Fig. 3 by the falling of the vertical rod due to the breaking of the sliver, and in Fig. 4 by the rising of the vertical rod due to bunches in the sliver; Fig. 5, a plan of the spring-rod, shippingrod, and their connection, and of the belt-shipper and fast and loose pulleys.

A is the frame; 13, the front guide; 0 O, the calender-rolls; D D, upper and lower drawing-rolls; E, the back trumpet, mounted 'on its lever E; F, the back guide; G G, the 40 driving-pulley and loose pulley; G G G, the

gears which communicate motion from the driving-pulley to the lower calender-rolls, C;

H, the belt-shipping fork, pivoted at its lower end, H, to the frame A; I, the bent sliding fork H; J, a rod rigidly connecting the ship ping-rod I and the spring-rod K, the latter sliding in brackets K K on the back of the frame A; L, the rock-shaft, provided with arms L L M, a connecting-rod having at its ender-rolls, front trumpet, and rock-shaft,

shipping-rod, jointed at its front end, I, to the" its fork M will slide up on the rod L lifting rear end a downhanging fork, M, with down-, wardlydiverging branches, which engage with a rod, L which connects the arms L, there being generally two sucharms in a drawingframe, said rod M having at its front endv a 5 5 ring or strap, M", surrounding an eccentric,

O", secured to the shaft 0 of the lower calendenroll, G, and said rod M being caused to reciprocate by the revolution of said eccentric; N, avertical rod pivoted to and hanging from the rod M and running down through the bracket K, and having a weight, N, attached to its lower end, and having, also, a pin, N, which limits its downward motion by coming in contact with the upper side of saidbracket 6 5 K, and having, also, a hole, N (shown by dotted lines in Fig. 1,) into which hole the springrod K is pushed by the spring K whenever the rod N is slightly raised; Q, the vertical shaft of the shipper, the lower end thereof having an arm, Q, which is slotted at Q to engage with a pin, I", on the top of the rod I, so that partially revolving the shaft Q in one direction will slide the rod 1, which, being, as above stated, jointed to the belt-shipping fork H, will cause said fork to swing on its pivot and its forked upper end to ship the belt from the loose to the fast pulley, and of course turning the shaft Q in the other direction will cause the beltto be shipped from the fast to the loose pulley, all of the above-named parts being constructed, supported, and operated in the usual manner. except that I add another arm, L, to the rock-shaft L, for purposes hereinafter described.

1 It is only necessary to add to the foregoing that when the sliver X breaks or becomes too attenuated back of the drawing-rolls the back trumpet, E, tips back, throwing forward the lower-end of the lever E above the arm L 9Q and prevents the rock-shaft L from being oscillated by the forward movement of the rod M, and the rod last named being drawn forward, as above described, the rear branch of the rear end of the rod M, and raising the rod N enough to allow the spring'rod K to enter the hole N WVhe'n the spring-rod slides, the

rod I also slides, and moves the fork H, carrying the belt, from the fast to the loose pulley. 10o

either direction.

the bracket A this bracket, as well as the.

bracket A, being secured to the frame A by screws X, or being a part of said frame. The

rear end of the bent lever T is pivoted to a rod, .S, capable of sliding vertically (in bearings S S inthe frame A and bracket A, .re-

spectively) through the slot It in the slide B when the lever T is turned upon its pivot in side a horizontal slot, S, of suflicient size verwically :to allow the slide R at the front of :the slot R to enter and 1e ve said slotS freely when the last-named slotis atthe proper height; but when the slot .S rises above or fallsbielowthe slot It, 'the front end :of :said slot .R will strike the rodgS, and the slide R will :be prevented from being drawn back, and the rook-shaft L, having its arm L pivoted to .saidslide, will not be rocked by the forward motion of the rod M, as above explained, the rod N will betraised high enough to allowrthe spring-rodK to slide into the hole N causing-the rod I, rigidly connected to the rod K, as above described, to slide and swing the belt shipping fork, and the belt will be Shipped onto the loose pulley, and the machine will be stopped.

A .lever, U, slotted at U to allow the rod S to pass down through it, and pivoted :at U" to the bracket A, has on its under side a lip or stop, U 2, which limits its downward motion by striking against said bracket A, and also has a bearing-point, U", which presses upon the projection 'S' on the back of the rod S, and tends to hold said rod S low enough to allow :the slide B to be drawn back bytherockshaft, andrthis pressure of the lever U is approximately adjusted by means of the weight U (sliding on said lever, and held at any desireddistance from the fulcrum U bythe set screw U turning in said weight and against said .lever,) so as nearly to counteract the normal andzconstant tendency of the-sliver X (by its friction against the inside of the trumpet T) to draw-said trumpet T forward.

'Tosecure aniore accurate adjustment, and to cause the trumpet T to, fall forward when the friction of the sliver in said trumpet T becomes less than normal, (as by the breaking of one of the doublings which form the sliver,)'auother lever, V, is at one end let into thehole A near The rod .S has on its front the lower end of the bracket A, and is slotted at V to let the rod S pass down through it, and

rests upon the pin S projecting horizontally from said rod S. This lever V has a sliding weight, V set by a screw, V turning in said weight and thrusting against said lever. The final adjustment of the pressure of said lever V (the weight U having been previously adjusted, as above set forth) should be such as barely to prevent the rod S from being lifted by the normal friction of the sliver X in the trumpet.

- Evidently, when the machine is running properly and the sliver is of the uniform size required, the rod S will not interfere with the operation of the machine; but when the sliver is broken or attenuated the rod S will be drawn down by the lever V; and, on theother hand,

when there are bunches orenlargements of the sliver too large to pass readily through the front trumpet, the same will be drawn forward and the rod S will be raised, and in either case the machine ready explained.

I claim as my invention 1. The combination, with the rock-shaft L, provided with the arm L", and the slotted slide R, pivoted to said arm, of the rod S, provided with the slot S", the fronttrumpet, T, its lever T, and mechanism for stopping said machine upon the stopping of said rock-shaft, as and for the purpose specified.

'2. The combination, with the rod M, provided with the fork M, as described, and means for reciprocating said rod, of therod .N, weighted and provided with the hole N as described, the rods K I,-rigidly connectedto-each other, the spring K, the brackets K K the belt-shipping fork H, pivoted to the frame A and to said rod I, said frame A,the rock-shaft L, provided with the arms L L, the slotted slide R, the slotted rod S, the trumpet T, its lever T, and the lever V, weighted as described, asand for the purpose specified.

3. The combination,with the rod M, provided with the fork M, as described, and means for reciprocating said rod, of the rod N, weighted and provided with the hole N, as described, the rods K I, rigidly connected to-each'other, the spring K, the brackets K K the beltshipping fork H, pivoted to the frame A'and to said .rod I, said frame A, the rock-shaft L, provided with the arms L L", the slotted slide R, the slotted rod S, the trumpet T, its lever T, the lever V, weighted as described, and the lever 'U, weighted as described, as and for the purpose specified.

HENRY B. ESTES.

will be stopped,asal- 

